Answer: 3.33 m/s
Explanation:
Assuming the questions is to convert 12 km/h to meter per second (m/s), let's begin:
In order to make the conversion, we have to know the following:

And:

Keeping this in mind, we can make the conversion:

Then:

The answer would be acceleration.
Answer:

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♨ Question :
- A car starts from rest and is moving at 60.0 m/s after 7.50 s. What is the car's average acceleration ?
♨ 
☄ Given :
- Initial velocity ( u ) = 0
- Final velocity ( v ) = 60.0 m/s
- Time ( t ) = 7.50 s
☄ To find :
✒ We know ,

Substitute the values and solve for a.
➛ 
➛ 
➛ 
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✑ Additional Info :
- When a certain object comes in motion from rest , in the case , initial velocity ( u ) = 0
- When a moving object comes in rest , in the case , final velocity ( v ) = 0
- If the object is moving with uniform velocity , in the case , u = v.
- If any object is thrown vertically upwards in the case , a = -g
- When an object is falling from certain height , in the case , final velocity at maximum height ( v ) = 0.
Hope I helped!
Have a wonderful time ツ
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Hey there!
Here is your answer:
<u><em>The proper answer to this question is "Earth, and Mercury".</em></u>
Reason:
<u><em>Mercury</em></u><span><u><em> has a density of 5.427 g/cm³</em></u>
<u><em>&</em></u>
</span><span><u><em>Earth has a density of 5.515 g/cm^3</em></u></span><u><em /></u>
<em>Therefore the dense planet is Earth.</em>
If you need anymore help feel free to ask me!
Hope this helps!
~Nonportrit